diff options
Diffstat (limited to 'core/src/main/java/org/bouncycastle/asn1/pkcs/ContentInfo.java')
-rw-r--r-- | core/src/main/java/org/bouncycastle/asn1/pkcs/ContentInfo.java | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/core/src/main/java/org/bouncycastle/asn1/pkcs/ContentInfo.java b/core/src/main/java/org/bouncycastle/asn1/pkcs/ContentInfo.java new file mode 100644 index 00000000..1ee920fd --- /dev/null +++ b/core/src/main/java/org/bouncycastle/asn1/pkcs/ContentInfo.java @@ -0,0 +1,102 @@ +package org.bouncycastle.asn1.pkcs; + +import java.util.Enumeration; + +import org.bouncycastle.asn1.ASN1Encodable; +import org.bouncycastle.asn1.ASN1EncodableVector; +import org.bouncycastle.asn1.ASN1Object; +import org.bouncycastle.asn1.ASN1ObjectIdentifier; +import org.bouncycastle.asn1.ASN1Primitive; +import org.bouncycastle.asn1.ASN1Sequence; +import org.bouncycastle.asn1.ASN1TaggedObject; +import org.bouncycastle.asn1.BERSequence; +import org.bouncycastle.asn1.BERTaggedObject; +import org.bouncycastle.asn1.DLSequence; + +public class ContentInfo + extends ASN1Object + implements PKCSObjectIdentifiers +{ + private ASN1ObjectIdentifier contentType; + private ASN1Encodable content; + private boolean isBer = true; + + public static ContentInfo getInstance( + Object obj) + { + if (obj instanceof ContentInfo) + { + return (ContentInfo)obj; + } + + if (obj != null) + { + return new ContentInfo(ASN1Sequence.getInstance(obj)); + } + + return null; + } + + private ContentInfo( + ASN1Sequence seq) + { + Enumeration e = seq.getObjects(); + + contentType = (ASN1ObjectIdentifier)e.nextElement(); + + if (e.hasMoreElements()) + { + content = ((ASN1TaggedObject)e.nextElement()).getObject(); + } + + isBer = seq instanceof BERSequence; + } + + public ContentInfo( + ASN1ObjectIdentifier contentType, + ASN1Encodable content) + { + this.contentType = contentType; + this.content = content; + } + + public ASN1ObjectIdentifier getContentType() + { + return contentType; + } + + public ASN1Encodable getContent() + { + return content; + } + + /** + * Produce an object suitable for an ASN1OutputStream. + * <pre> + * ContentInfo ::= SEQUENCE { + * contentType ContentType, + * content + * [0] EXPLICIT ANY DEFINED BY contentType OPTIONAL } + * </pre> + */ + public ASN1Primitive toASN1Primitive() + { + ASN1EncodableVector v = new ASN1EncodableVector(); + + v.add(contentType); + + if (content != null) + { + v.add(new BERTaggedObject(true, 0, content)); + } + + if (isBer) + { + return new BERSequence(v); + } + else + { + return new DLSequence(v); + } + } +} |